Question 1

A carbohydrate can be defined as a molecule

Accepted Answer

A) composed of carbon atoms bonded to water molecules. 
B) composed of amine groups and carboxylic acid groups bonded to a carbon skeleton. 
C) composed mostly of hydrocarbons and soluble in non-polar solvents. 
D) that is an aldehyde or ketone and that has more than one hydroxyl group. 
E) whose name ends in "-ase". 
A) composed of carbon atoms bonded to water molecules. 
B) composed of amine groups and carboxylic acid groups bonded to a carbon skeleton. 
C) composed mostly of hydrocarbons and soluble in non-polar solvents. 
D) that is an aldehyde or ketone and that has more than one hydroxyl group. 
E) whose name ends in "-ase".

Question 2

Classify the molecule shown according to the location of its carbonyl group and the number of carbon atoms.

Accepted Answer

A) aldotriose 
B) aldotetrose 
C) aldopentose 
D) ketotriose 
E) ketotetrose 
A) aldotriose 
B) aldotetrose 
C) aldopentose 
D) ketotriose 
E) ketotetrose

Question 3

Match the following.
-glycogen

Accepted Answer

A) isomers of cyclic sugars that differ in the position of the hydroxyl group at the hemiacetal carbon atom 
B) an aldopentose that is a component of nucleic acids 
C) a monosaccharide that is sweeter than sucrose and found in honey and fruits 
D) a monosaccharide that functions as the transport form of carbohydrates in blood 
E) stereoisomers that are not mirror images of each other
F)a carbohydrate that yields two monosaccharides upon hydrolysis
G)a disaccharide composed of one molecule of glucose and one molecule of galactose
H)a carbohydrate that can be oxidized to produce an acid molecule or its corresponding anion
I)a very highly branched polysaccharide composed of glucose units
J)a carbohydrate composed of a large number of monosaccharides chemically combined
K)mirror-image forms of chiral molecules
L)a disaccharide composed of one molecule of glucose and one molecule of fructose
M)a disaccharide composed of two molecules of glucose
N)a monosaccharide which is a component of milk sugar
O)a polysaccharide composed of glucose units joined by β-1,4 linkages
P)a component of starch composed of glucose units joined by a-1,4 linkages 
A) isomers of cyclic sugars that differ in the position of the hydroxyl group at the hemiacetal carbon atom 
B) an aldopentose that is a component of nucleic acids 
C) a monosaccharide that is sweeter than sucrose and found in honey and fruits 
D) a monosaccharide that functions as the transport form of carbohydrates in blood 
E) stereoisomers that are not mirror images of each other
F)a carbohydrate that yields two monosaccharides upon hydrolysis
G)a disaccharide composed of one molecule of glucose and one molecule of galactose
H)a carbohydrate that can be oxidized to produce an acid molecule or its corresponding anion
I)a very highly branched polysaccharide composed of glucose units
J)a carbohydrate composed of a large number of monosaccharides chemically combined
K)mirror-image forms of chiral molecules
L)a disaccharide composed of one molecule of glucose and one molecule of fructose
M)a disaccharide composed of two molecules of glucose
N)a monosaccharide which is a component of milk sugar
O)a polysaccharide composed of glucose units joined by β-1,4 linkages
P)a component of starch composed of glucose units joined by a-1,4 linkages

Question 4

Glucose can be classified as a(an)

Accepted Answer

A) aldoketose. 
B) aldopentose. 
C) aldohexose. 
D) ketopentose. 
E) ketohexose. 
A) aldoketose. 
B) aldopentose. 
C) aldohexose. 
D) ketopentose. 
E) ketohexose.

Question 5

Match the following.
-fructose

Accepted Answer

A) isomers of cyclic sugars that differ in the position of the hydroxyl group at the hemiacetal carbon atom 
B) an aldopentose that is a component of nucleic acids 
C) a monosaccharide that is sweeter than sucrose and found in honey and fruits 
D) a monosaccharide that functions as the transport form of carbohydrates in blood 
E) stereoisomers that are not mirror images of each other
F)a carbohydrate that yields two monosaccharides upon hydrolysis
G)a disaccharide composed of one molecule of glucose and one molecule of galactose
H)a carbohydrate that can be oxidized to produce an acid molecule or its corresponding anion
I)a very highly branched polysaccharide composed of glucose units
J)a carbohydrate composed of a large number of monosaccharides chemically combined
K)mirror-image forms of chiral molecules
L)a disaccharide composed of one molecule of glucose and one molecule of fructose
M)a disaccharide composed of two molecules of glucose
N)a monosaccharide which is a component of milk sugar
O)a polysaccharide composed of glucose units joined by β-1,4 linkages
P)a component of starch composed of glucose units joined by a-1,4 linkages 
A) isomers of cyclic sugars that differ in the position of the hydroxyl group at the hemiacetal carbon atom 
B) an aldopentose that is a component of nucleic acids 
C) a monosaccharide that is sweeter than sucrose and found in honey and fruits 
D) a monosaccharide that functions as the transport form of carbohydrates in blood 
E) stereoisomers that are not mirror images of each other
F)a carbohydrate that yields two monosaccharides upon hydrolysis
G)a disaccharide composed of one molecule of glucose and one molecule of galactose
H)a carbohydrate that can be oxidized to produce an acid molecule or its corresponding anion
I)a very highly branched polysaccharide composed of glucose units
J)a carbohydrate composed of a large number of monosaccharides chemically combined
K)mirror-image forms of chiral molecules
L)a disaccharide composed of one molecule of glucose and one molecule of fructose
M)a disaccharide composed of two molecules of glucose
N)a monosaccharide which is a component of milk sugar
O)a polysaccharide composed of glucose units joined by β-1,4 linkages
P)a component of starch composed of glucose units joined by a-1,4 linkages

Question 6

When a monosaccharide forms a ring by interaction of one of its hydroxyl groups with its aldehyde group,the bond is referred to as a(an)________ linkage.

Accepted Answer

A) ether 
B) ester 
C) acetal 
D) hemiacetal 
E) glycosidic 
A) ether 
B) ester 
C) acetal 
D) hemiacetal 
E) glycosidic

Question 7

The reaction in which a disaccharide is broken down into its component monosaccharides is

Accepted Answer

A) glycoside formation. 
B) hydrolysis. 
C) enediol formation. 
D) reduction. 
E) oxidation. 
A) glycoside formation. 
B) hydrolysis. 
C) enediol formation. 
D) reduction. 
E) oxidation.

Question 8

Match the following.
-cellulose

Accepted Answer

A) isomers of cyclic sugars that differ in the position of the hydroxyl group at the hemiacetal carbon atom 
B) an aldopentose that is a component of nucleic acids 
C) a monosaccharide that is sweeter than sucrose and found in honey and fruits 
D) a monosaccharide that functions as the transport form of carbohydrates in blood 
E) stereoisomers that are not mirror images of each other
F)a carbohydrate that yields two monosaccharides upon hydrolysis
G)a disaccharide composed of one molecule of glucose and one molecule of galactose
H)a carbohydrate that can be oxidized to produce an acid molecule or its corresponding anion
I)a very highly branched polysaccharide composed of glucose units
J)a carbohydrate composed of a large number of monosaccharides chemically combined
K)mirror-image forms of chiral molecules
L)a disaccharide composed of one molecule of glucose and one molecule of fructose
M)a disaccharide composed of two molecules of glucose
N)a monosaccharide which is a component of milk sugar
O)a polysaccharide composed of glucose units joined by β-1,4 linkages
P)a component of starch composed of glucose units joined by a-1,4 linkages 
A) isomers of cyclic sugars that differ in the position of the hydroxyl group at the hemiacetal carbon atom 
B) an aldopentose that is a component of nucleic acids 
C) a monosaccharide that is sweeter than sucrose and found in honey and fruits 
D) a monosaccharide that functions as the transport form of carbohydrates in blood 
E) stereoisomers that are not mirror images of each other
F)a carbohydrate that yields two monosaccharides upon hydrolysis
G)a disaccharide composed of one molecule of glucose and one molecule of galactose
H)a carbohydrate that can be oxidized to produce an acid molecule or its corresponding anion
I)a very highly branched polysaccharide composed of glucose units
J)a carbohydrate composed of a large number of monosaccharides chemically combined
K)mirror-image forms of chiral molecules
L)a disaccharide composed of one molecule of glucose and one molecule of fructose
M)a disaccharide composed of two molecules of glucose
N)a monosaccharide which is a component of milk sugar
O)a polysaccharide composed of glucose units joined by β-1,4 linkages
P)a component of starch composed of glucose units joined by a-1,4 linkages

Question 9

Match the following.
-reducing sugar

Accepted Answer

A) isomers of cyclic sugars that differ in the position of the hydroxyl group at the hemiacetal carbon atom 
B) an aldopentose that is a component of nucleic acids 
C) a monosaccharide that is sweeter than sucrose and found in honey and fruits 
D) a monosaccharide that functions as the transport form of carbohydrates in blood 
E) stereoisomers that are not mirror images of each other
F)a carbohydrate that yields two monosaccharides upon hydrolysis
G)a disaccharide composed of one molecule of glucose and one molecule of galactose
H)a carbohydrate that can be oxidized to produce an acid molecule or its corresponding anion
I)a very highly branched polysaccharide composed of glucose units
J)a carbohydrate composed of a large number of monosaccharides chemically combined
K)mirror-image forms of chiral molecules
L)a disaccharide composed of one molecule of glucose and one molecule of fructose
M)a disaccharide composed of two molecules of glucose
N)a monosaccharide which is a component of milk sugar
O)a polysaccharide composed of glucose units joined by β-1,4 linkages
P)a component of starch composed of glucose units joined by a-1,4 linkages 
A) isomers of cyclic sugars that differ in the position of the hydroxyl group at the hemiacetal carbon atom 
B) an aldopentose that is a component of nucleic acids 
C) a monosaccharide that is sweeter than sucrose and found in honey and fruits 
D) a monosaccharide that functions as the transport form of carbohydrates in blood 
E) stereoisomers that are not mirror images of each other
F)a carbohydrate that yields two monosaccharides upon hydrolysis
G)a disaccharide composed of one molecule of glucose and one molecule of galactose
H)a carbohydrate that can be oxidized to produce an acid molecule or its corresponding anion
I)a very highly branched polysaccharide composed of glucose units
J)a carbohydrate composed of a large number of monosaccharides chemically combined
K)mirror-image forms of chiral molecules
L)a disaccharide composed of one molecule of glucose and one molecule of fructose
M)a disaccharide composed of two molecules of glucose
N)a monosaccharide which is a component of milk sugar
O)a polysaccharide composed of glucose units joined by β-1,4 linkages
P)a component of starch composed of glucose units joined by a-1,4 linkages

Question 10

Classify the molecule shown according to the location of its carbonyl group and the number of carbon atoms.

Accepted Answer

A) aldotriose 
B) aldotetrose 
C) aldopentose 
D) ketotriose 
E) ketotetrose 
A) aldotriose 
B) aldotetrose 
C) aldopentose 
D) ketotriose 
E) ketotetrose

Question 11

Which molecule is a reducing sugar?

Accepted Answer

A) sucrose 
B) maltose 
C) starch 
D) glycogen 
E) amylopectin 
A) sucrose 
B) maltose 
C) starch 
D) glycogen 
E) amylopectin

Question 12

α-D-glucose and β-D-glucose are

Accepted Answer

A) enantiomers. 
B) anomers. 
C) disaccharides. 
D) a racemic mixture. 
E) polysaccharides. 
A) enantiomers. 
B) anomers. 
C) disaccharides. 
D) a racemic mixture. 
E) polysaccharides.

Exam 21: Carbohydrates

A carbohydrate can be defined as a molecule

Classify the molecule shown according to the location of its carbonyl group and the number of carbon atoms.

Match the following. -glycogen

Glucose can be classified as a(an)

Match the following. -fructose

When a monosaccharide forms a ring by interaction of one of its hydroxyl groups with its aldehyde group,the bond is referred to as a(an)________ linkage.

The reaction in which a disaccharide is broken down into its component monosaccharides is

Match the following. -cellulose

Match the following. -reducing sugar

Classify the molecule shown according to the location of its carbonyl group and the number of carbon atoms.

Which molecule is a reducing sugar?

α-D-glucose and β-D-glucose are

Matter and Measurements

Atoms and the Periodic Table

Ionic Compounds

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Classification and Balancing of Chemical Reactions

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Chemical Reactions: Energy, rates, and Equilibrium

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Solutions

Acids and Bases

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Introduction to Organic Chemistry: Alkanes

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Amines

Aldehydes and Ketones

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

The Generation of Biochemical Energy

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Nucleic Acids and Protein Synthesis

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Protein and Amino Acid Metabolism

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